We learned a lot about Donald Judd, thanks to art critic Jerry Saltz and Architecture Critic Justin Davidson, who’ve made a trip to his restored loft. [Vulture]

Michael Kimmelman, a former art critic-turned-architecture-critic for the Times brought the Madison Square Garden lease renewal to the forefront in his February column. It’s now May, and the debate still rages. MSG doesn’t want to leave. [Curbed]

The Committee to Save the NYPL offers a point-by-point rebuttal to the New York Public Library, in the fight to keep the NYPL from demolishing the stacks and sending most of its inventory into offsite storage, for circulation in a Central Library Plan. [SaveNYPL.org]

Another good day for the like economy: Yahoo has now officially bought tumblr, in a deal estimated to be worth $1.1 billion. They promised “not to screw it up” like flickr. Worpress’ Matt Mullenweg thinks it was a steal, Forbes’ Peter Cohan says they overpaid. [NPR]

Facebook’s been getting similar criticism since it bought Instagram last year for $1 billion, and has yet to see a return. [Time]

Our twitter is flooding with updates this morning from the #AAM2013, the American Alliance of Museums conference and awards ceremony. Look at @Juliahalperin and @ArielHudes for the bullet points. [#AAM2013]